Check-valve



(No Model.)

P. G. VAN WIE.

CHECK VALVE.

No. 325,289. Patented Sept. 1, 1885.

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STATES PETER G. VAN \VIE, OF CLEVELAND, OHIO.

CHECK- VALVE.

SPECIFICATION forming part of Letters Patent No. 325,289, dated September 1, 1885.

Application filed February 14, 1884. Renewed June 22, 1985.

To aZZ whom it may concern:

Be it known that I, PETER G. VAN Win, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Straightway Check and Stop Valves, of which the following is a specification.

This invention relates to check and stop valves in which a gate or plug is used for shutting the passage-way; and it consists in a new and novel construction and arrangement of the several parts comprising my valve, in such a manner that the gate or plug requires but a minimum movement for opening the passage-way to full capacity or area, the object being to reduce and prevent the wear and pounding of the valve so common in checkvalves which require a maximum movement to uncover the opening to full capacity. To accomplish this end, I compress the valvechamber from a circle into the form of an ellipse, and form the valveseat on such an angle to the plane of the major axis of said ellipse as will bring the opening at the valve-seat to a true circle, and render the distance necessary for the lift of the gate or plug to uncover said opening to the shortest limit, or not greater than the minor axis of said ellipse.

In the accompanying drawings, Figure 1 is a longitudinal section of my valve. Fig. 2 is a diagram showing the principle of compressing the circle of the valve-chamber to an oval.

Fig. 3 is a top view of the valve, and Fig. 4: is an end view of the same.

A is the valve'chamber, which is provided (X0 model.)

with round sockets a ateach end for attaching the valve to pipes. Said chamber is in the form of an oval or ellipse compressed from the circle at each end of the chamber, as seen in Fig. 2. The chamber is provided with an opening over the said seat, covered by a suitable cap, B. The valve-seat is made at an angle across said ellipse, which will make the opening a true circle, and is covered by a round dislcvalve, C, which is attached to lever D, hinged or hung in a depending hook or lug, e, 011 a disk or ring, E, resting on a ledge or flange, b, in the aforesaid opening and held in place by the cap B.

It will be seen by the dotted lines in Fig. 1 that valve 0 has but a short distance to lift to open this valve to full capacity of the flow.

Having described my invention, I claim- 1. An elliptical valvechamber terminating at either end in a circular form, and provided with a diagonal valve-seat having round opening or passage for the valve to rest in or upon, substantially as specified.

2. The combination, with an elliptical valvechamber terminating at either end in a circular form and having diagonal valve-seat, of a valve arranged to close upon said seat and requiring but little play for uncovering the opening, substantially as described, and for the purpose set forth.

PETER G. VAN \VIE.

iVitnesses:

GEo. W. TIBBITTS, E. W. LAIRD. 

